Unbreak non-amd64: check __LP64__ to detect 64 bits host OS

This fixes pointer truncation on sparc64 and probably mips64.
Bump REVISION since quickjs previously built on arm64 but with
different bignum sizing.

ok cwen@ bcallah@ (maintainer)

lang/quickjs/Makefile

@@ -1,8 +1,9 @@
-# $OpenBSD: Makefile,v 1.3 2020/01/15 14:24:23 jca Exp $
+# $OpenBSD: Makefile,v 1.4 2020/01/15 14:30:50 jca Exp $
 
 COMMENT =	small, embeddable JavaScript engine in C
 
 V =		2019.10.27
+REVISION =	0
 DISTNAME =	quickjs-${V:S/./-/g}
 PKGNAME =	quickjs-${V}
 

lang/quickjs/patches/patch-libbf_h

@@ -0,0 +1,16 @@
+$OpenBSD: patch-libbf_h,v 1.1 2020/01/15 14:30:50 jca Exp $
+
+Use more generic test for 64 bits platform.
+
+Index: libbf.h
+--- libbf.h.orig
++++ libbf.h
+@@ -27,7 +27,7 @@
+ #include <stddef.h>
+ #include <stdint.h>
+ 
+-#if defined(__x86_64__)
++#if defined(__LP64__)
+ #define LIMB_LOG2_BITS 6
+ #else
+ #define LIMB_LOG2_BITS 5

lang/quickjs/patches/patch-quickjs_h

@@ -0,0 +1,16 @@
+$OpenBSD: patch-quickjs_h,v 1.1 2020/01/15 14:30:50 jca Exp $
+
+Use more generic test for 64 bits platform.
+
+Index: quickjs.h
+--- quickjs.h.orig
++++ quickjs.h
+@@ -53,7 +53,7 @@ typedef struct JSClass JSClass;
+ typedef uint32_t JSClassID;
+ typedef uint32_t JSAtom;
+ 
+-#if defined(__x86_64__) || defined(__aarch64__)
++#if defined(__LP64__)
+ #define JS_PTR64
+ #define JS_PTR64_DEF(a) a
+ #else